Genomics

The complete set of genetic material in an organism, encompassing all DNA sequences including genes, regulatory regions, and non-coding DNA. In humans, the genome consists of approximately 3.2 billion base pairs organized across 23 pairs of chromosomes.

The process of determining the precise order of nucleotide bases (adenine, thymine, guanine, and cytosine) within a DNA molecule. Modern next-generation sequencing (NGS) technologies can read millions of DNA fragments simultaneously.

The process by which information encoded in a gene is used to synthesize a functional gene product, typically a protein. Gene expression is regulated at multiple levels including transcription, RNA processing, translation, and post-translational modification.

A revolutionary genome-editing technology adapted from a bacterial immune defense system. It uses a guide RNA to direct the Cas9 enzyme to a specific DNA sequence, where it creates a precise cut, allowing researchers to delete, insert, or modify genetic material.

A variation in a single nucleotide base at a specific position in the genome that occurs in a meaningful proportion of the population. SNPs are the most common type of genetic variation and serve as markers for disease susceptibility and drug response.

The study of the complete set of RNA transcripts (the transcriptome) produced by the genome under specific conditions. RNA-seq technology enables researchers to quantify gene expression levels across the entire genome simultaneously.

The study of how an individual's genetic makeup affects their response to drugs. By analyzing genetic variants that influence drug metabolism, efficacy, and toxicity, clinicians can tailor treatments to each patient's genetic profile.

The study of the complete set of epigenetic modifications across the genome, including DNA methylation and histone modifications, which regulate gene expression without altering the underlying DNA sequence.

The study of genetic material recovered directly from environmental or clinical samples, enabling analysis of entire microbial communities without the need to culture individual species in the laboratory.

An observational study that scans the genomes of many individuals to find genetic variants (typically SNPs) statistically associated with a particular disease or trait. GWAS has identified thousands of genetic loci linked to complex diseases.